Xiaomi 18 Pro Max vs Samsung Galaxy S27 Ultra
94
out of 100
VS
91
out of 100
Here we compared two flagship smartphones: the 6.9-inch Xiaomi 18 Pro Max (with Qualcomm Snapdragon 8 Elite Extreme Gen 6) that was released on September 23, 2026, against the Samsung Galaxy S27 Ultra, which is powered by Qualcomm Snapdragon 8 Elite Extreme Gen 6 and came out 5 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Select the amount of RAM to evaluate performance and value for money more precisely
Specifications of the Galaxy S27 Ultra was provided by insiders and may not be fully accurate.
Key differences
Reasons to consider the Xiaomi 18 Pro Max
- Comes with 2800 mAh larger battery capacity: 8500 vs 5700 mAh
- Supports higher wattage charging (100W versus 60W)
- Slow-motion recording at 1920FPS
- 15% better performance in AnTuTu Benchmark (5001K versus 4334K)
- Has 2 SIM card slots
- Has a built-in infrared port
Reasons to consider the Samsung Galaxy S27 Ultra
- The rear camera has a 5x optical zoom
- 19% higher pixel density (498 vs 419 PPI)
- Ready for eSIM technology
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | Dynamic AMOLED |
| Size | 6.9 inches | 6.9 inches |
| Resolution | 1208 x 2624 pixels | 1440 x 3120 pixels |
| Aspect ratio | 19.5:9 | 19.5:9 |
| PPI | 419 ppi | 498 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (1-120 Hz) | Yes (1-120 Hz) |
| Max rated brightness | 1200 nits | 2000 nits |
| Max rated brightness in HDR | 4000 nits | 3000 nits |
| HDR support | Yes, Dolby Vision | Yes, HDR10+ |
| Touch sampling rate | 300 Hz | - |
| Screen protection | Dragon Crystal Glass 3 | Corning Gorilla Armor 2 |
| Screen-to-body ratio | 92.1% | 91.2% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
Design and build
| Height | 163.39 mm (6.43 inches) | 163.6 mm (6.44 inches) |
| Width | 77.6 mm (3.06 inches) | 78.3 mm (3.08 inches) |
| Thickness | 8.39 mm (0.33 inches) | 8 mm (0.31 inches) |
| Weight | 235 g (8.29 oz) | 221 g (7.8 oz) |
| Waterproof | IP68 | IP68 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Plastic | Glass |
| Frame material | Metal | Metal |
| Colors | White, Black, Blue, Red, Pink | Black |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite Extreme Gen 6 | Qualcomm Snapdragon 8 Elite Extreme Gen 6 |
| Max clock | 5010 MHz | 5010 MHz |
| CPU cores | 8 (2 + 3 + 3) | 8 (2 + 3 + 3) |
| Architecture | - 3 cores at 3.74 GHz: - 3 cores at 4.03 GHz: - 2 cores at 5.01 GHz: |
- 3 cores at 3.74 GHz: - 3 cores at 4.03 GHz: - 2 cores at 5.01 GHz: |
| Manufacturing | TSMC | TSMC |
| Lithography process | 2 nanometers | 2 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 850 | Adreno 850 |
| GPU shading units | 1536 | 1536 |
| GPU clock | 1450 MHz | 1450 MHz |
| FLOPS | ~4454.4 GFLOPS | ~4454.4 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 29825 | 31492 |
| Single-core score | 3762 | 3890 |
| Multi-core score | 11459 | 12074 |
AnTuTu Benchmark 11
| CPU | 1431500 | 1275438 |
| GPU | 1947800 | 1686566 |
| Memory | 500900 | 495257 |
| UX | 1121034 | 876794 |
| Total score | 5001234 | 4334055 |
| Samples | Less than 3 | Less than 3 |
AnTuTu 11 Ranking List (#5th place)
Recent User Tests
Xiaomi 18 Pro Max
| Date | Benchmark | Result |
|---|---|---|
| π 2026-10-22 (Josh Burton) | AnTuTu 12 | 4589508 |
Samsung Galaxy S27 Ultra
No benchmark results yet
Memory
| RAM size | 12 GB | 12 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Channels | 4 | 4 |
| Storage size | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card | No | No |
Software
| Operating system | Android 17 | Android 17 |
| ROM | HyperOS 4 | One UI 9.5 |
| OS updates | 6 years | 7 years |
| Security updates | 6 years | 7 years |
Battery
| Capacity | 8500 mAh | 5700 mAh |
| Max charge power | 100 W | 60 W |
| Battery type | Silicon-Carbon (Si/C) | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | Yes (50 W) | Yes (25 W) |
| Reverse charging | Yes, (wireless) | Yes, (wireless) |
| Bypass charging | Yes | Yes |
| Fast charging | Yes | Yes (80% in 30 min) |
| Full charging time | - | 0:50 hr |
Main camera
| Matrix | 200 megapixels | 200 megapixels |
| Image resolution | - | 16320 x 12240 |
| Zoom | Optical, 3.2x | Optical, 5x |
| Flash | Dual LED | LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | Up to 30FPS |
| 4K video recording | Up to 120FPS | Up to 120FPS |
| 1080p video recording | Up to 60FPS | Up to 240FPS |
| Slow motion | 1920 FPS (720p) | 240 FPS (1080p) |
| Angle of widest lens | 102Β° | 120Β° |
| Lenses | 1) Standard: 200 MP 2) Telephoto: 200 MP 3) Ultrawide: 50 MP |
1) Standard: 200 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP |
| Camera features | - Bokeh mode - Pro mode - RAW support |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 200 MP | 200 MP |
| Aperture | f/1.7 | f/1.4 |
| Focal length | 23 mm | 23 mm |
| Sensor | Smartsens SCC90XS 960 LightHunter | - |
| Sensor size | 1/1.28" (β 0.78 inch) | 1/1.3" (β 0.77 inch) |
| Pixel size | 0.61 micron | 0.6 micron |
| Autofocus | Laser autofocus | Laser autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 200 MP | 50 MP |
| Aperture | f/2.4 | - |
| Focal length | 75 mm | - |
| Sensor | Samsung ISOCELL HP5 | - |
| Sensor size | 1/1.56" (β 0.64 inch) | 1/2.55" (β 0.39 inch) |
| Pixel size | 0.8 micron | - |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/2.4 | f/1.9 |
| Focal length | 17 mm | 13 mm |
| Sensor | Omnivision OV51D | - |
| Sensor size | 1/2.88" (β 0.35 inch) | 1/2.5" (β 0.4 inch) |
| Pixel size | 0.61 micron | 0.7 micron |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 50 megapixels | 16 megapixels |
| Image resolution | 8192 x 6144 | - |
| Aperture | f/2.2 | - |
| Focal length | 21 mm | - |
| Sensor | Omnivision OV51D | - |
| Sensor size | 1/2.88" (β 0.35 inch) | 1/2.6" (β 0.38 inch) |
| Pixel size | 0.61 micron | - |
| Autofocus | Phase autofocus | Phase autofocus (Dual Pixel) |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 6.0 | 6.0 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | Yes | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, QZSS |
| NFC* | Yes | Yes |
| Infrared port | Yes | No |
| Number of SIM* | 2 | 1 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | Yes |
| Hybrid slot | No | No |
| 5G support | Yes | Yes |
Sound
| Speakers | 2.1 | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Other
| Category | Flagship | Flagship |
| Announced | September 2026 | February 2027 |
| Release date | September 2026 | March 2027 |
| Launch price (MSRP) | $1299 | $1399 |
| Sensors | - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 100 W | Not included |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the battery life is more important to you, then choose the Xiaomi 18 Pro Max. But if the display is more of a priority β go for the Samsung Galaxy S27 Ultra.
Cast your vote
Total votes: 9
